28271277

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{293}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 41827968

約数和(自身を除く): 13556691

約数列:

[1, 3, 9, 71, 151, 213, 293, 453, 639, 879, 1359, 2637, 10721, 20803, 32163, 44243, 62409, 96489, 132729, 187227, 398187, 3141253, 9423759, 28271277]

約数ペア:

[(1, 28271277), (3, 9423759), (9, 3141253), (71, 398187), (151, 187227), (213, 132729), (293, 96489), (453, 62409), (639, 44243), (879, 32163), (1359, 20803), (2637, 10721)]